when you install unreal engine version 4.xx (any version) you have the option of adding debug symbols , which are like 7gb’s or so, but is completely required for knowing what is causing the crash…
so you can reinstall your current version with that…
ALSO, when you compile your game (turn it into a .exe or .app file for win or mac), you need to specify in the settings for debugging symbols to be included because by default they are not included…